Triple sliding storm window unit



June 2, 1953 l.. J. MlLoNE TRIPLE SLIDING STORM WINDOW UNIT Filed June 29, 19'50 5 Sheets-Shea?l l INVENToR.

June 2, 1953 J. MlLoNE TRIPLE sLIDING STORM WINDOW UNIT 5 Sheets-Sheet 2 Filed June 29, 1950 Q .iinilltlflnllllllltll .Illilvlllllill a l n l ,5 JNVENTOR.

June 2, 1953 l.. J. MlLoNE 2,640,535

TRIPLE SLIDING STORM WINDOW UNIT Filed June 29, 195o i 5 sheets-sheet 5 Ff I {NI/ENTOR.

A7, M4 au June 2, 1953 J. MlLoNE TRIPLE SLIDING STORM WINDOW UNIT 5 Sheets-Sheet 4 Filed June 29, 1950 s's d1 INVENTOR.

BY M1-7la/MMVM A ,(7'TK/UEYS L. J. MILONE TRIPLE SLIDING STORM WINDOW UNIT June 2, 1953 5 Sheets-Sheet 5 Filed June 29, 195o INVENTOR `Patente-cl June 2, 1953 UNITED STATES PATENT OFFICE 2,640,535 TRIPLE sLIDiNG STORM WINDOW UNIT Louis J. Mlone, Livingston, N. J., assignor to The Eagle-Picker Company, Cincinnati, Ohio, a

corporation of Ohio Application June 29, 1950, Serial N0. 171,054

(Cl. 16o-182) Summer SeaSOll.

A structure of this type is disclosed in the co-pending application of Louis J. Milone, Serial No. 74,358, led February 3, 1949, to which attention is invited. In general, this co-pending application embodies a metal frame having a pair of sliding storm sashes and a screen sash, all slidably conned Within runner channels formed in the frame. The screen sash of this unit is interposed between the storm sashes, being slidably mounted :within a runner channel `intermediate the storm sash channels and arranged to cooperate with the meeting rails of the storm sashes to form a weather seal when the storm sashes are closed. These three members are ad- I justable invarious positions to provide a com` plete closure for Weather protection during the Winter season with practically no ventilation, partial ventilation during milder weather, and full ventilation through the insect screen during the summer season with both storm sashes raised and the screen sash lowered. The arrangement is such that the storm and screen sashes need not be removed for storage at the change of seasons; instead, they are simply shifted to inoperative positions, although if desired, they may conveniently be removed for cleaning.

The present structure constitutes an assembled unit having the samegeneral characteristics, including a pair of slidable storm sashes for weather protection and ventilation and a screen sash for summer use, and the invention resides in several novel features and improvements in structure, The principal objects have been to reduce the cost of fabricating the units; to facilitate the fitting and installation of the units in spite ofv variations from normal in the size andshapeof the standard window openings to which they are applied; also, to provide amore 2 eiiicient weather seal between the storm window unit and window opening and between the storm sashes and their frame. rected to improvements in the mounting of the screen sash, a novel mounting arrangement .for

the exible runner channels of the storm sashes and improvements in the sash latches, all oi which are more clearly disclosed hereinafter.

In order to economize in fabrication costs, a'

simplified frame and cooperating screen sash have been developed which eliminates a screen sash runner channel, the screen sash being arl-l ranged to embrace the face of the storm sash channel instead, by the use of yieldable clips.v Fitting of the frame unit in the Window opening has been facilitated by the provision of flexible adaptor strips secured to the frame and adapted to be attached to the opening to support rigidly the storm window frame, at the same time yieldably compensating for Variations in the opening to provide an improved weather seal.

In order to simplify the frame structure, the storm sashes are mounted side-by-side and slightly spaced from one another within a pair of channel runners having exible sheet metal liners which expand against the storm sashes for sealing. The meeting rails of the sashes are provided with oppositely related angular flanges which interlock with one another to provide tortuous interfaces for weather sealing when closed.

The screen sash is'hung to the inside of the storm sashes by means of clips Which engage at opposite sides, the edges of fianges formed along the sash channels and the mounting clips forthe screen sash are yieldably extensible alongy one side to permit the sash to be disengaged from the pair of anges which support it. These clips are spring urged against the opposed anges to provide a frictional engagement capable of supporting the screen sash in Various adjusted posivFurther objects are die` 3 function of holding the sash at its adjusted elevation.

The screen sash is locked in closed position by a latch mounted upon its lower cross rail which functions also as a lift or handle for raising and lowering the sash. This combined latch and pull is in the form of a loop shaped handle pivotally mounted on the lower cross rail of the screen sash, having an angular portion which extends outwardly as a hand hold in one position. In its second position, the angular portion swings downwardly into engagement with a cross rail of the storm sash frame toA lock the sash securely to the cross rail in closed position.

The standard window frames, as above noted, vary from building to building due towarpage and variations from normal size. For this pur-1 pose, the adaptor frame extends vfrom the storm sash frame to the window opening to close ii the space intervening between the frame and opening. In the present structurethe adaptor frame includes along its opposite sides exible sheet metal strips extending laterally toward the wiL dow opening. These strips preferably are secured permanently to the storm window frame and their extended edges are attached to the surfacerof the window` opening by means of screws which spring the edges of the flexible strips in to intimate engagement against the surface of the window frame.

By this arrangemenuthe adaptor strips `are secured in a positive manner both tothe storm sashframe and window opening to support the stormsash frame rigidly withinpthe opening; and by virtue of the yieldability or the adaptor SUITPS, wel. ae ,f fe, .t Fmp'n'ate ,for irreguluritiesinthe angularity andeontour of the win'- dow opening to provide a weather seal. To cornpensateior variations at the top and bottom of the window opening, the storm window unit is equipped with top and bottom rails which may 4 sted vertically and angularly to "seal o 'ce between the storm unit andy window pe ng at 'these' points; therefore, the four sides f tle frame are weather sealed with respect to the windowopen g. T ifr fnits are fabricated preferably se ions o fjextrude'd 'aliuninumA which are y d to tlie'ecessary shape in cross 'sec'- vid" nerhchannels for the's'ashes; ded channel sections include 'margiiial flanges ngageable by the yieldable screen mounting clips afs previously noted. The extf'ded sections are smoothesurfarced 'when new but thief-are not well suited for sliding engagefuentsince the aluminum is rather 'soft and becomes roughene'd vdi'irin'g service, thus causing the sashes tc bind frictionally within their channels. The `ab'ovenoted sheet metal liners are formed from stainless -steel strips disposedwithin the extruded channels arranged to embrace the edges of the storm sashes under pressure to provide "a weather seal and, at the same time, permit the s ashes to slide smoothly even after prolongedservice. The extruded 'storm 'sash channels are ofrsufcient width to retain both sashes and the steel linerstrip is configurated to provide a pair of runners side by side, lonefor each sash,r -with an riterme'da, Spa-rator between them. The separator is formed by doubling the steel sheet upon itself to `form spacedexible walls which tend to expand outwardly. Ivhese expansiblei sheet meta-l wallsforce the s ayshes outwardly in opposite directions against the side flanges of the extruded channel under controlled pressure which is sufcient to permit sliding movement and at the same time provide a Weather seal. The liner strips are secured in the extruded channels by providing mounting holes in the bottoms of the channels and severing out portions of the liner sheet and clinching the severed portions around the edges of the holes.

The openings thus dened are utilized in a dual function, first to mount the liner strips, and secondly to provide keepers engageable by latches which are mounted upon the storm sashes serving to lock the sashes either in closed position or at selected elevations for ventilatiohi These latches include bars which slide outwardly from the sashes and project through the holes to provide 'a positive engagement; and the holes are located insets at opposite sides of the frame at several elevations to provide several height adjus'tnents for the sashes.

n Further advantages and details of the structur are more fully disclosed in the speciication with reference to the attached drawings disclosing a preferred embodiment of the invention:

1n the drawings:

Figure 1 is a general view illustra'ting the ifnproved storm sash unit as viewed from 'the itside of a building, showing the storih sas'hs in closed position forvwint'e'r use with the 's'crn sash in its elevatedstorage position.

Figure 2 isi-an enlarged fragmentary sectional view taken online 2 2, Fi'g"u're -1, showing i'n crosssection the relationship'f the sashs Acorresponding to the positionof Figufife 1` l'ig'ure 3 'is a view sinilar to Figure l except that the storm sashesare shown in elevated position with the screen sash lowered to 'convert vthe unit vfor summer usage.

Figure 4 is an enlarged ffr'a-g-'rnnta'ry sectional viewvtaken on line 4 4, Figure 3, showi'n'gwthe relationship of the slashes Aeorresi'iding -tb Figurs 3.

Efigulfe 5 is va general view ofthe ii''it, as ideived from'i'.heminslide of the-building v:inthe plane lhdicajted by line 5 5 in Figure 4, with the sti sashmes elevatedand the screen sash in lowered position, as in Figure'S.

I :figufre 6 is anenlarged 'trag-mentari; view taken from Figure 2 ,A detailing 'the Yintrloclzetl lweather sealing relationship of the adjoining 'meeting rails of the storm sashes when 'the Ys'ash'es are in closed position'.

Figure 7v is an enlarged 'fragmentary sectional View, also takenfr'o'n Figure a2, detailing 'the'tel'e scopic lower rail ofthe storm 'f iiam'e and the weather sealing larra--nge'reliit `f the lower storm sash with respect to theifraie c'iss rail. Figure 8 is acrossse'ctional View 5ta-ken on line 8 8, Figure l, illustrating generally the vrelationship of the storm window unit with respect-to la standardwindow frame and the vrelationship of the storm and screen sashes 'in the storm sash frame.

Figure 9 is an enlarged fragmentary vieivftalcen from Figure 8, detailing 4the 'yieldable adaptor strips for mounting the storm-sash frame with respect tothewindow opening, the construction and arrangement of the sheetmetal runners for slidably retaining the storm sashes in weather sealing engagement in their frame and the structure for slidably mounting the screen sash. Figure l0 is a fragmentary 'side vievfpariiially broker; away, illustrating sneofthe yieirauie clips for mounting 'the screen sash withrspeet rto 'the Astorm 'sash frame.

.Figure 11 'is a sectional view taken online l I--I l, Figure 10, further detailing the yieldable mounting clip ydisclosed in Figure 10.

Figure 12 is a view similar to Figure 10 illustrating one of the fixed mounting clips which is secured upon the side of the screen sash frame opposite to the yieldable clips for cooperation with the yieldable clip in detachably maint-aining the screen sash in position upon its frame flange.

Figure 13 is a sectional view taken on line l3-l3, Figure 7, detailing the corner construction of the lower storm sash and its relationship with the lower portion of the frame within which it is mounted.

Figure 14 is a sectional view taken on line I4-l4, Figure 2, detailing the corner construction of the upper storm sash and its relationship with the upper portion of the frame.

Figure 15 is a sectional View taken on line l|5, Figure '7, further detailing the corner construction of the lower portion of the storm sash frame.

Figure 16 is a sectional view similar to Figure 13 showing a portion of the upper storm sash latched in an elevated position with respect to the storm sash frame.

Referring to Figures 1, 3 and 5, the storm window unit consists generally of a storm window frame 20 and an adaptor frame 2l, enclosing the space between the storm window frame and the opening defined by the standardwindow frame 22 with the storm window frame engaged against the runner strips 23 of the standard window frame. The adaptor frame 2l compensates for variations in the size and shape of the standard window frame and establishes va weather seal between the storm unit and window opening as hereinafter disclosed in detail. This arrangement is necessary because standard window frames vary from normal size and shape incident to individual fitting, warpage and is especially noticeable in older buildings; however, by virtue of the compensation afforded by the adaptor frame, the manufacturer is able to produce storm sash units for the various standard Window sizes which may be installed without alteration in spite of such variations from standard in the window openings.

slidably mounted within the storm sash frame 20 is an upper storm sash 24, a lower sash 25 and, an insect screen sash 26. These respective sashes may be removed from the frame for cleaning or at installation conveniently by springing them laterally to one side, the sashes being provided with yieldable members which normally maintain them slidably in confined position within the storm sash frame. The structural details of this arrangement are disclosed in the drawings and are described in detail hereinafter. The storm units are installed preferably with the sashes removed for convenience in handling and, after installation, their sashes are sprung into normal position quickly and easily.

The storm window frame is constructed from aluminum extrusions forming side rails or stiles generally of channel shape in cross section for slidably confining the storm sashes and having anges for mounting the screen sash. In addition, the storm window frame is provided with a top or head rail 30 and a bottom rail 3l, The side rails are of two-piece construction as illustrated most clearly in Figure 9. As disclosed, there is provided a base extrusion 32 to which is secured the side members of the adaptor frame 2|', the side members having their opposite or outer 'edges fastened to the surface of the window opening to support the storm sash frame. The base member constitutes a thin walled hollow extrusion having a pair of outwardly extending flanges 33 and 34 and an inwardly projecting flange 35 which forms one half of each sash retaining channel. The channel is completed by a second extrusion 36 which is substantially T- shaped in cross section complementary to the base extrusion to provide the opposite side flange 31 of the channel and having secondary flange 38 extending parallel to the side ange in a direction opposite to the open channel to provide a slide rail engageable by the mounting clips 39 of the screen frame, as hereinafter described in detail, The T-shaped extrusion 3S is secured upon the face of the hollow extrusion 35 by means of screws or rivets, as indicated at 40 in Figure 9.

`Since the-aluminum extrusions are relatively soft and subject to scoring, a slideway or liner 4I, which is formed preferably from resilient stainless sheet steel strips, is installed within the channel to provide a pair of runners for the respective storm sashes arranged to separate the sashes from one another. The slideway 4I is configured in cross section to provide a central spacer 42 formed by doubling the sheet metal upon itself, the doubled portion of the sheet metal being of loop formation to provide resilient spaced walls which spring the storm sashes outwardly into intimate sliding engagement with the side flanges of the channels. The runners are installed in the channels at opposite sides facing one another, as shown in Figure 8, the lower storm sash being confined in the outer channel and upper sash being confined in the inner channel such that the meeting rails of the sashes in closed position interlock with one another, as illustrated in Figure 6. The stainless steel separator 42, by its resiliency, intimately engages the sides of the respective storm sashes to provide weather seals to prevent looseness of the sashes with respect to the frame and to provide a smooth bearing surface. The runners are restrained against displacement in the channel by clinching the partially severed portions 43 of the base of the sheet metal liners at one or more places to the bottom of the channels,`as indicated in Figures 13 and 14, the extrusions for this purpose having openings 44 to receive the clinched portions of the runner strips. These openings also cooperate with the sash latches to lool: the sashes positively in adjusted position, as disclosed hereinafter.

- The head rail 30 of the storm sash frame consists of a pair of inverted U-shaped extrusions which are telescopically engaged one upon the other, the outer extrusion 45 being arranged to seat upon the top rail of the standard window frame with its side engaged against a stop 23, as shown in Figure 2. The inner extrusion 46 is fixed to the storm sash frame, its ends being connected to the stiles by means of T-shaped brackets 4l which are inserted respectively into thehollow portion of the stile and into the endwise portion of the channel, as viewed in Figure 14. The angle bracket is secured in position by means of the screw and rivet 48 and 50 to provide a rigid assembly.l The outer U-shaped extrusion 45 is slidably engaged upon the inner extrusion to provide both vertical and angular adjustments and thereby to permit the storm window frame' assembly to adapt itself to the top of-the window frame; thus, the storm unit -liaed for the :storm sashes.

positions. Described in detail with reference to Figures 6 and 16, the latches for the upper storm sash each consist of a latch bar 'I9 slidably sustained in a hollow section 80, forming a part of the channel extrusion 8| which constitutes the lower cross rail. A slot 82 is formed in the lower wall 83 of this section and a bolt 84 passes through'slot 82 into the latch bar 19. The several liner mounting holes Mi are in alignment with one another along opposite sides of the frame to permit the sash to be locked at various elevations by sliding the respective latch into engagement with the openings, as shown in Figure 1'6.

The lower sash is substantially of the same construction as the upper, being provided with a pair of sash pulls 85-85 (Figure 7) constitut ing wire loops having their ends pivotally engaged in clips 86 secured to the slide bolt 19. The clips 86 pass through respective slots 8l formed in the wall of the hollow section 80 with the pulls facing the inside of the room. The storm sash frame for the lower sash is ofcourse provided with openings 44 for engagement by the latch bars of the lower sash so that both sashes can be locked in adjusted positions with respect to one another. T-he lifts or pulls S thus serve to actuate the latch bars and to raise and lower the sash; also, it is shiftable to a at position (Figure 7) to prevent interference with the screen sash.

In closed position, as shown in Figures 2 and 6, a weather-proof seal is established between the meeting rails of the upper and lower sashes by means 0i a pair of angle members 88 and 8S which are secured respectively to the meeting rails of the upper and lower sashes by screws 90. These angle members face in opposite directions with respect to one another and they are offset laterally Vto provide an interlocking interface with the vertical flange of one angle overhanging the vertical ange of the other. This provides a tortuous passageway which is eiective to prevent the iiow of air `between the meeting rails when the sashes are closed.

As shown in Figure 7, the cross member 8l of the lower sash 25 includes in addition to the hollow section 80, an inverted channel indicated at QI cooperating with 4a uted rail 92 which is adapted to seat within the channel when sash 25 is closed. The flutes 93 in rail 92 are toward the outside of the window and when embraced within the channel provide an efficient seal against seepage of driving rain. Rail 92 may be formed as part oi asill plate 94 which is riveted to the upper channel member of cross rail 3l. In addition, there is provided a channel 95 located to the inside of the frame to embrace the lower edge of the screen sash in closed position (Figure 4). The channel also cooperates with a latch to lock the screen sash in closed position, Vas hereinafter noted. The channel 95 is constituted by an anguiar portion 06 of sill plate 94, combined with an angle section S'I which is riveted as at 98 to the sill plate.

The y screen ZG is slidab-ly mounted upon the iianges 31-31 which form a part of the storm sash frame, the screen sash being engaged upon the iianges 38 by the clips previously noted. This arrangement provides a simplied and more compact frame construction since the ily screen does not require a retaining channel such as uti- Since the problem of establishing` a weather seal is not present in connection with the fly screen, the elimination of a third channel has no Ciect upon the eiciency of the unit.

Described in detail with respect to Figures 9 to 12 inclusive, the y screen constitutes a frame which is constructed from extruded sections |00 having a hollow configuration providing a lateral channel IOI around the inner margin of the frame for mounting the screen cloth I02. As shown in Figure 9, the screen cloth is marginally secured to the frame by retainer rods 03 which are pressed into the channel I 0 I, with the screen cloth looped around the rods and squeezed between the rod and the sides of the channel.

The mounting clips 39 for the right hand side of the screen are formed from sheet metal, bent to provide a hook IDG extending fro-1n the edge of the frame in a position to embrace slidably the flange 38, as shown in Figure 12. The clips include a shank IE5 which passes through an opening formed in the hollow extrusion |00 and being provided with an angular foot portion |06 resting against the inner wall I0'I of the hollow portion of the extrusion. The clip is permanently secured in position by clinching inwardly the severed portions I 08-I08 of the outer wall, the ends of the sections |08v engaging the foot I06 and wedging it securely against the wall |01. Along the opposite edge of the screen sash there is provided a series of similar clips 39 which are yieldably mounted within the frame extrusion in the manner disclosed in Figures 10 and l1. The yieldable clips 30 permit the screen sash to be shifted laterally in a direction to disengage the hook |04 of the xed clips from the ange 38 and thereby to permit removal of the screensash from the storm window unit.

Described in detail, the spring mounted clip 30 includes a hook |04 and a shank' |05 similar to the xed clip. In addition, shank I05 at its inner end is bent over upon itself to provide a spring anchor H0, the side wall I II of the frame extrusion being provided with an opening II2 topermity insertion of the clip. A spring loop I I3 having its ends rounded as at II4 (Figure 10) is interposed in the V-shaped conguration of the spring anchor with the curved ends of the spring resting against the wall I I I. Upon applying force laterally to the left, as viewed in Figures 8 and 9, spring I I3 will deform and thereby permit the clip to be withdrawn from the screen frame a suiilcient distance to permit the hook I04 on the opposite side to be disengaged from the screen retaining flange 38. In addition, the spring of the clip provides a frictional engagement with the opposite flanges 38--38 which is suicient t0 maintain the screen in adjusted position vertically with respect to its retaining rails. The screen therefore is self-sustaining in its elevated storage position disclosed in Figure 2 and need not be provided with latches to hold it in this position.

In its lowered position (Figure 4) for warm weather, the storm sashes are locked positively in elevated position by the previously described latches and the screen sash may be locked in its lowered position by means of a combined pull and latch I I5 for security. As shown in Figures 4, 5 and 6, the latch II5 consists of a wire loop having its opposite ends pivotally mounted in a sheet metal clip I I6 secured by a screw I I 'I to the lower cross rail. The lower portion of lift I I5 is bent at right angles to form a hook portion |I8 engageable as shown with the channel 95. 1n its lowered position, the llower edge of the screen frame resides within the channel with its upper cross rail adjacent to the cross rail of the lower storm sash 25. `To prevent the entry of insects,

a iluted rib l2!) is formed along the inner face of the cross rail of sash 25 which is contiguous with the upper frame section HIP. of the screen when the screen is in lowered position; the flutes in rib 320 resting against the outer face of the screen fra-me as shown in Figure 6. In addition, a fluted rib |2l may be provided along the upper frame member of sash 25, to cooperate with the lower rail of the screen to prevent the entry of insects in the event it is desired to use the screen for ventilation purposes in its upper position, the outer sash 24 being lowered at the time. In its utility as a sash pull, as shown in Figure 6, the member is disengaged from channel d5 and swings upwardly in which position it bears against the screen frame with the angular hook portion H8 projecting outwardly to provide a convenient hand hold. lt will be noted that the screen sash is disposed to the inside of the storm sashes for convenient manipulation and to protect it from exposure to the weather.

Having described my invention, I claim:

1. A weather sealed storm window unit having a pair of vertically slidable storm sashes and a screen sash adapted to be installed in weather sealed engagement in a standard window opening comprising` a storm sash frame having side and end members formed of extruded metal sections, the side members being congurated to provide respective channels, the said channels having their open sides facing one another and having spaced sides flanges adapted to conne slidaoly the said pair of storm sashes, runner strips formed of resilient sheet metal seated within the said channels, each runner strip being configurated in cross section to provide an intermediate wall of looped configuration in cross section, the walls of said loop being adapted to expand outwardly in opposite directions toward the side flanges to provide a controlled pressure engagement against the edge of the sashes to force the sashes outwardly against the side flanges of the channels and thereby produce a weather seal, a screen sash retaining flange extending outwardly from the side flanges in opposite directions, a screen sash having retaining clips engaged over the edge of the screen sash flanges, adaptor strips formed oi resilient sheet metal secured to the storm sash frame side members and having extended marginal edges engaged in weather sealing contact with the surface of the standard window opening, and fastening means securing the said marginal edges to the window opening to support the storm window frame rigidly within the opening.

2. A storm window unit adapted to 'be installed in weather sealing engagement within a standard Window opening comprising, a storm window frame having storm sashes slidably conned therein in weather sealed engagement with the storm window frame, an adaptor frame arranged to establish a weather seal between the storm window and the surface of the window opening constituting exible sheet metal strips, each of said strips having an inner marginal edge of channel shape in cross section having side anges engaged against the outer surface of the storm window frame, the outer side flange of the channel having a second flange joined along its frame engaging edge, the second ange extending outwardly at an angle diverging from the flange to which it is joined with its free edge engaged against the surface ofthe standard window opening and being adapted to yield and thereby to conform to the contour and angulation of the Window opening, fastening means extending through the channel section of the strips to clamp the side flanges thereof in intimate weather sealing engagement with the storm sash frame, and fastening means extending through the second flange to clamp the free edge of the flange in intimate weather sealing engagement with the surface of the window opening with the storm window frame rigidly supported in spaced relationship within the window opening by the ilexible metal strips.

3. A convertible storm sash and screen unit comprising, a storm window frame arranged to be mounted within a standard window opening, a pair of storm sashes mounted slidably within the storm window frame, the said frame having respective channels along its opposite sides, the channels having their open sides facing one another and having spaced side flanges, an intermediate separator member disposed within the channel and adapted to engage and conne 'the respective storm sashes for vertical movement relative to one another, one of the side flanges of each channel having a screen sash flange extending outwardly in a direction opposite to the open sides of the channels, a screen sash adapted to be mounted in facial engagement against the said screen sash anges, and yieldable retainer clips mounted upon the screen sash and extending laterally in opposite directions into engagement with the edges of the screen sash flanges and adapted to slidably mount the screen sash upon the outer surface of the screen sash anges.

4. A convertible storm sash and screen unit comprising, a storm window frame arranged to be mounted within a standard window opening, a pair of storm sashes mounted slidably within the storm window frame, the said frame constituting extruded metal side member sections, the metal sections of the side members having respective channels with their open sides facing one another and having spaced side flanges, a separator interposed in the said channels intermediate the side flanges and coextensive therewith, the separator being adapted to provide respective spaced runners for the storm sashes adapting the sashes to be shifted vertically with respect to one another, the side flange-s of the channels having respective screen sash anges extending outwardly in opposite directions from the open side of the channels, a screen sash engaged against the outer surface of said screen sash flanges, a plurality of mounting clips extending `outwardly from the opposite sides of the screen sash and having outer ends adapted to embrace the screen sash flanges, and spring elements associated with the said mounting clips adapted to yieldably urge the clips into frictional engagement with the screen sash anges under predetermined pressure to permit the screen sash to be adjusted vertically with respect to the screen sash flanges with soilicient frictional engagement to sustain the screen sash in its adjusted position.

5. A convertible storm sash and screen unit comprising, a storm window frame arranged to be mounted within a standard window opening, a pair of storm sashes mounted slidably within the storm window frame, the said frame having respective channels along its opposite sides, the channels having their open sides facing one another and adapted to engage and corinne the storm sashes for vertical movement relative to one another, one of the side flanges `of each channel having a screen sash flange extending' outwardly in a direction opposite to the open sides oi the channels, a screen sash adapted to be mounted in facial engagement against the said screen sash flanges, a plurality of retainer clips mounted upon the screen sash along opposite sides, the outer ends of the clips being doubled over to form hooks adapted to embrace the opposite edges of the flanges, the retainer clips being rigidly mounted along one side of the screen sash, and spring elements along the opposite sides of the screen'sash connecting the retainer clips extensibly to the sash to provide disengagement of the sash by shifting the same laterally a sulcient distance to disengage the rigid clips from their flange.

6. A convertible storm sash and screen window unit comprising, a storm window frame arranged to be secured within a standard window opening, a pair of storm sashes mounted within the storm Window frame, said frame constituting extruded sections having respective channels along its opposite vertical sides, the channels having their open sides facing one another and having spaced side flanges and an intermediate separator adapted to provide within the channels a pair of runners for slidably mounting the storm sashes for vertical movement relative to one another, the side flanges of the channel extrusions each having a screen sash flange extending outwardly in opposite directions from the open side of the channel, a screen sash constituting a frame formed from extruded sections having a hollow cross section, a screen cloth panel having its marginal edges engaged within the screen sash frame, a series of mounting clips extending from the opposite side edges of the screen sash frame, the said mounting clips each constituting a sheet metal clip having an outerl end doubled upon itself to form a hookl engageable over the outer edge of the screen sash flange, the said clips having shank portions passing into the hollow extrusions of the vscreen sash frame, and springs confined within vpair of storm sashes, a flexible runner strip yformed of resilient sheet metal seated within the channel shaped extrusions and adapted to provide a weather sealed bearing surface with respect to the sashes, the runner strip being configurated in cross section to provide a base section joined by an intermediate resilient separator in the form of an open loop having spaced flexible Walls, said base section providing a pair of spaced runners separated by the spaced flexible Walls of said loop, the said spaced walls being adapted to expand outwardly in opposite directions toward the side fianges to provide a controlled pressure engagement against the respective storm sashes to force the sashes outwardly against the side flanges of the channels and thereby produce a weather seal, theI base section of the runner being seated against the bottom of the channel to provide a bearing surface for the side edges of the respective storm sashes.

8. In a weather sealed storm window unit hav- Y ing slidable storni sashes, a storm sash frame having sidemembers formed of 4metal extrusions including channels adapted to conne slidably a pair of storm sashes, a runner strip formed of flexible sheet metal including 4an intermediate separator adapted to be seated within-the said channels to provide spaced runners for the respective storm sashes, the bottom of each of the channels including mounting holes adapted to anchor the said flexible runner strips, the runner strips having partially severed portions passing through the mounting holes and clinched upon the edges of the mounting holes for anchoring the strips within the channels, the storm sashes having latch plungers slidably mounted along their side edges adapted to lock the same at selected elevations within the frame, the said latch plungers being adapted in engaged position to project through the said mounting holes to provide a positive engagement therein to support the sashes at selected elevations.

9. In a weather sealed storm window unit having a pair of vertically slidable storm sashes, a storm sash frame having side members formed of rigid extruded metal sections of channel shape in cross section, the said channels having their open sides facing one another and having spaced side flanges adapted to coni-lne slidably the said pair of storm sashes, a flexible runner strip formed of resilient sheet metal seated within the channel shaped extrusions and adapted to provide a weather sealed bearing surface With respect to the sashes, the runner strip being congurated in cross section to provide a base section joined by an intermediate resilient separator of looped configuration providing a pair of spaced runners separated by the spaced Walls of said loop, the said spaced walls being adapted to expand outwardly in opposite directions against the sashes to force the sashes outwardly against the side flanges of the channels, the base section of the runner being seated against the bottom of the channel to provide a bearing surface for the side edges of the respective storm sashes, the bottom of the extruded channels having la plurality of mounting holes for anchoring the flexible runner strips therein, the base section of the runner strips having partially severed portions bent into clinching engagement with the said mounting holes securing the runner strips in position within the chan- -nels, and respective slidable latch plunger-s mounted on the storm sashes and adapted to project their ends through said mounting holes to lock the sashes rigidly in adjusted position. l0. In a storm window unit having a frame-including channels adapted to confine slidably a pair of storm sashes, a pair of screen sash retaining flanges disposed along opposite sides of the said channels, a screen sash formed of hollow extruded sections, a plurality of yieldable mounting clips mounted on the extruded'section along one side of the screen sash frame and slidably embracing the outer edge of one of the screen sash anges, a plurality of xed retaining vclips mounted on the extruded section along the opposite side of the screen sash frame and slidably einbracing the outer edge of the other screen sash flange, the said xed and yieldable clips being arranged to coopera-te with one another to retain the screensash in adjusted position by frictional engagement with the edges of the flanges, the said fixed clips each including a shank passing through the hollow extrusion, the shank including an angular foot disposed Within the extrusion and seated against the inner surface of the hollow extrusion, the extrusion having partially severed portions adjacent the angular foot, the severed sections being bent inwardly with i their inner edges in engagement against the foot, the. partially severed portions being arranged to anchor the foot within the extrusion by wedging the foot between the surface of the extrusion and the ends of the severed portions.

1l. In a storm window unit having slidable storm sashes and a screen sash, a frame having a pair of channel shaped side members adapted to slidably confine the storm sashes and screen sash, the frame having a lower cross rail including a cantilever liange of channel shape in cross section facing upwardly and being extended from the frame to a plane displaced from the plane of the channel shaped side members and adapted to embrace the lower portion of the screen sash, a combined sash pull and latch member pivotally mounted upon the lower edge of the screen sash, the said member having a right angular portion formed upon its free end, the said right angular portion being adapted to depend below the lower edge of the screen sash upon being swung to its lowered position, the said right angular portion of the sash pull and latch member being bent in a direction facing the free end of the cantilever flange and to embrace the ange and thereby to lock the screen sash in closed position and being adapted to project at right angles from the sash when the member is placed in elevated position to provide a projecting pull for raising or lowering the sash.

l2. A convertible storm sash and screen unit comprising, a storm window frame adapted to be mounted within a standard window opening, a pair of' storm sashes mounted slidably within the storm window frame, the said frame having respective channels along its opposite sides, the channels having their open sides facing one another and having spaced side flanges, an intermediate separator member disposed within the channel and adapted to engage and confine the respective storm sashes for vertical move ment relative to one another, one of the side flanges of each channel having a screen sash flange extending outwardly in a direction opposite to the open sides of the channels, a screen sash adapted to be mounted in facial engagement against the said screen sash anges, means mounted on the opposite side edges of the screen sash and extending outwardly therefrom, said means embracing the opposite outer edges of the l said screen sash flanges and adapted to slidably mount the screen sash upon the outer surface of the screen sash flanges, the lower storm sash which is adjacent the screen sash having the lower edge thereof congurated to provide an inverted channel, a uted rib on the sill portion of the window frame, said iluted rib engageable within said inverted channel when the storm sash adjacent the screen sash is in lowered position to provide a water seal between said sash and sill.

13. In s, storm window unit having a pair of slidable storm sashes and a screen sash, a frame having side members adapted to slidably confine the storm sashes 4and the screen sash, said screen sash disposed to the inside of the unit, the storm sashes and screen sash each having upper and lower cross rails, the lower cross rail of the storm sash which is mounted adjacent tothe screen sash having an inverted channel portion, a iiuted rib along the lower portion of the frame and engageable within said inverted channel portion when the storm sash adjacent the screen sash is in lowered position to provide a water seal between the lower cross rail of the storm .Sash

and frame, and a Fluted rib along the inner face of the lower cross rail of the Storm Sash. Said fluted rib being adjacent the screen sash and engageable with the upper cross rail of said screen sash when said screen sash is lowered and the storm sash adjacent it is raised to provide a, seal between the cross rails of the storm sash and screen sash to prevent the entry of insects.

14. In a storm window unit having slidable storm sashes and an insect screen sash, a window frame having upper and lower cross rails and having a pair of channel shaped side members adapted to slidably confine the storm sashes, the channel shaped side members on opposite sides each having a screen sash ange extending outwardly in a direction Vfacing away from the open sides of the channels, means mounted on the opposite side edges of the screen sash slidably embracing the screen sash flanges whereby the screen sash is adjustable vertically in a plane parallel with and displaced from the plane of the storm sashes, the lower cross rail of the window frame including a cantilever flange of channel shape in cross section facing upwardly and being extended in a plane displaced from the plane of the channel shaped side members, the screen sash having a, lower cross rail and the cantilever flange being adapted to receive and embrace said lower cross rail when the screen sash is lowered, a selective sash pull and latch member pivotally mounted upon the lower cross rail of the screen sash, the said member having a right angular portion formed upon its free end, the said right angular portion being adapted to underlie and embrace the cantilever flange when pivoted downwardly to latching position to lock the screen sash in closed position with its lower cross rail nested in the cantilever flange, Said member being adapted to project at right angles from the cross member of the screen sash when pivoted upwardly to provide a horizontally projected pull for raising or lowering the screen sash.

15. In a. convertible storm sash and screen unit, a storm window frame adapted to be mounted within a standard window opening, an upper and lower storm sash mounted slidably within the storm window frame, the said frame having respective channels along its opposite sides, the channels having their open sides facing one another and having spaced side flanges, an intermediate separator member disposed within each channel and coextensive therewith, each separator member being formed of exible sheet metal looped to provide yieldable spaced walls, the storm sashes being conned in pressure engagement against said spaced walls by the spaced side anges of the channels to provide a weather seal between the sashes and storm window frame, the storm sashes having adjoining meeting rails disposed adjacent one another when the storm sashes are in closed position, the meeting rail of the upper storm sash having an angle member providing a vertical ange extending upwardly, said vertical ilange being spaced from the meeting rail toward the meeting rail of the` lower storm sash, the lower storm sash having an angle member providing a vertical flange extending downwardly and spaced from the meeting rail toward the meeting rail of the upper storm sash, said anges being adapted to provide an interlocking interface with respect to one another when the sashes are closed to pro- Vide a weather seal, said interlocking anges being disposed in the plane of said separator mem- 17 bers, the yieldable Walls of the separator member being adapted to maintain the storm sashes and the cooperating vertical flanges in alignment With respect to one another to 'provide accurate registry of the vertical anges in interlocking position.

LOUIS J. MILONE.

References Cited in the le of this patent UNITED STATES PATENTS Number Name Date 606,948 Walsh July 5, 1898 Number 

